After ISO 14000 (Environmental management)@ the environmental activities in the operators' companies@ manufacturers and contractors had to adapt their procedures of classification of outside plant waste in the infrastructure of telecommunication networks. There is a very considerable amount of outside plant waste@ some of which includes products that may be considered to be dangerous@ toxic or ecotoxic. A waste product may be classified as toxic and dangerous waste (TDW) if@ and only if@ it contains any of the constituents listed in Table 1@ and if these@ in turn@ present any of the characteristics shown in Table 2@ in the proportions and limits considered in the current international regulations (Restriction of Hazardous Substances Directive or RoHS).